Auto / manual ecu.... Question

Danni22 · Post by **Danni22** » Thu Dec 20, 2012 10:52 pm

As most if you no I'm going to be starting the polo build this weekend but its now on a manual box still with the auto ecu..

What problems will I face?? Iv tried to do some research but all I can find is that the engine light will be on...

Will the fault code put it into limp mode?

Post by **Ammo** » Thu Dec 20, 2012 11:23 pm

Think there is a resistor you can solder in, but I that's as much as I know

Pretty sure you could pick up a UKDM ECU for not too much if you can't get it to work

secla · Post by **secla** » Thu Dec 20, 2012 11:26 pm

got one you can have for 10 + postage

Danni22 · Post by **Danni22** » Thu Dec 20, 2012 11:27 pm

Ahh nice one.. Will I need to get it de immobilised??

secla · Post by **secla** » Thu Dec 20, 2012 11:36 pm

how have you got round the issue with the auto ecu ?
im not sure how you go about removing the imoboliser but if you have the key/imoboliser parts from the donor car you could just wire them in the get around it. otherwise www.h-tune.co.uk maybe able to the relevant soldering work if it can be removed

Post by **Ammo** » Thu Dec 20, 2012 11:38 pm

Considering how much you have spent on this build, why not convert it to ODB1 or go after market?

Danni22 · Post by **Danni22** » Thu Dec 20, 2012 11:57 pm

I'm going for a hondata S300 in the new year, it's just to get it started to iron out any problems and running issues

Iv been told you carnt run it with the auto ecu but the only issue I can see is the fact it will bang up a fault code what this code will do I'm not sure

'92 Si VTEC · Post by **jjmartin349571** » Fri Dec 21, 2012 12:13 am

Did you get the post I put up on your other thread showing the resistors to swap over in order to convert the auto ECU to manual mate?

Danni22 · Post by **Danni22** » Fri Dec 21, 2012 12:17 am

jjmartin349571 wrote:Did you get the post I put up on your other thread showing the resistors to swap over in order to convert the auto ECU to manual mate?

Yehhh I did buddy.. I'm just not sure if I need to do it with me getting a hondata.. I guess I'll just find out when I start it if it will work

Post by **Merlin** » Fri Dec 21, 2012 9:06 am

Danni22 wrote:I'm just not sure if I need to do it with me getting a hondata.

If I'm understanding you, you can't use the the Prelude ECU with a Hondata chip. You'll need a P28 / P30 / P72 ECU.